During a test, a rocket travels upward at 75m/s, and when it is 40m from the ground its engine fails. Determine the maximum height reached by the rocket and its speed just before it hits the ground. Neglect the effects of air resistance.

During a test, a rocket travels upward at 75m/s, and when it is 40m from the ground its engine fails. Determine the maximum height reached by the rocket and its speed just before it hits the ground. Neglect the effects of air resistance.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 23P: The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows...

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Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

During a test, a rocket travels upward at 75m/s, and when it is 40m
from the ground its engine fails. Determine the maximum height
reached by the rocket and its speed just before it hits the ground.
Neglect the effects of air resistance.

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